Earth-anchor.



F. B. MILLER.

EARTH ANCHOR.

APPLICATION FILED MAE.30,1908.

91 5,784. Patented Mar. 23, 1909.

' sides of the hole.

UNITED FRANK B. MILLER, 0F NORWALK, onio.

. EARTH-ANCHOR.

Specification of Letters Patent.

Patented llarch as, 1900.

Application filed March 30, 1908. lei-1.1110. 484,118.

To all whom it may concern:

Be it known that I, FRANK B. MILLER, a citizen of the United States, andresident of Norwalk, in the count of Huron and State of Ohio, haveinvente certain new and useful Improvements in Earth-Anchor, -of which Ihereby declare the following to be a full, clear, and exact description,such as will enable others skilled in the art to which it appertains tomake and use the same.

The objects of the invention are to provide a form of folding anchor,adapted to hold firmly in the ground, and to provide an efficient andserviceable tool havin great simplicity in construction and absofuterigidity and capacity for resisting all pulling strains.

The device is ada ted for use with the guy ropes of derricks, te egraphand electric wire po es and in all situations where resistance to aulling strain is required.

he invention comprises a hinged plate adapted to fold in onl onedirection and to resist any force applie to open it in the otherdirection, in a draw bar by means of which the guy rope or wire may beattached thereto and in for ed arms to the draw bar having a naturalspring action tending to fold the hinged sides of the plate together andtherefore reduce the extent of the spread thereof so that the anchor canbe inserted into acomparatively small hole in the ground. An importantfeature of the invention is the effect of the mechanical construction ofthe hinged blades to provide a tog le joint such that when compressedfrom aiove an increased ower is obtained to force the ti s of the bla esoutward into the ground at tiie The invention in detail consists in thecombination and arrangement of parts, and forms of construction,hereinafter described, shown in the accompanying drawings andspecifically pointed out in the claim.

In the accompanyin drawings, Figure 1 is a perspective view of t edevice showing the blades in the horizontal position; Fig. 2 is as1rmlar view showing t e blades artially folded in the ordinary positionrea y for insertion in a hole in the ground; Fig. 3 shows the device inthe hole ready for spreading the blades and in dotted lines the bladesare shownextended in the horizontal position; Fig. 4 1s a longitudinalcentral section of one blade showing manner of attachment of the forkeddraw bar; Fig. 5 is a perspective view of oneT shaped-end of the forkeddraw bar.

In these views 1, 1 are the blades hinged together on the lower side at2 in such a mannor that their meeting edges form shoulders at 3 so as tooppose any effort to fold the blades in an upward direction.

Pivotally secured to the blades and extending upward from their u persides are the arms 4 of a fork which orms the termination of the drawbar 5. These arms tend to draw together and fold the blades back to backso that when in the normal condition they are ready for insertion in thehole made for them, but permit the blades to be expanded after insertionin the hole, by pushing ulpon the centrall placed hinged ed es, an tusbyloweringtiecentralportiomt eed es are extended as shown in dottedlines in ig. 3. The ti s of the blades are curved upward to assist t emin entering the ground.

The expandingl force 18 applied as in a toggle joint, unt' the arms arespread to a horizontal position. The hole is then filled with dirt, tamed down hard and no amount of pull upon t e draw bar can fold or releasethe anchor, since the anchor can be folded onl by raising the centralportion thereof.

'l he fork ends are preferably T headed at 8 for simplicit inconstruction and are inserted in suite le slots 9 in the blades.

I believe myself to be the first to provide an anchor composed of hingedblades adapted to fold in only one direction and to attach a draw barthereto at points spaced from the hinged edges and extendin at an angleto the planes of the blades an contrary to the direction of folding theblades.

Having described the invention what I claim as new and desire to secureby Letters Patent is In an earth anchor, the combination with bladeshinged together and adapted to fold in one direction only, of draw barextremities attached thereto, said draw bar extremities forming a springfork ada ted to retain the blades in a partially folde osition.

In testimony whereof I ereunto set my hand this 24th day of March 1908.

FRANK B. MILLER. In presence of- WM. M. MONROE, Ensns'r T. HALL.

